WHAT IS THIS STONE:unsure: (NATUREL OR MAN MADE)

[reeler78]

Hi all,
Has anyone any idea what this find may be ?
It was found by my uncle while he was ploughing a field near knareborough u.k.
It may turn out to be nothing and just caused by nature. But i thought it was strange
how the stone fits together perfectly and a bit weird how it has a perfect bowl shape interior
like it has been man made rather than just breaking so perfectly in half.
So would be interested in your thoughts and opinions...cheers

 

[leslie]

Harrogate and Knaresborough in North Yorkshire England,steeped in history Stone Age, Iron Age, and the Roman Invasion.

Sorry I don't have a clue to what it is, a very nice and unusual stone. Freak of nature at a guess.

Les ( Yorkshire )

 

[osgood]

Might make a good bird bath or turtle bowl. I think its just the way nature made it, probably a mismatch of pressures, or temperatures , or materials, or fluidity, when forming,etc. Then it fractured out that way - visually imperceptible to us as to why . CO

 

[edjcox]

Kinda reminds me of a fossil...

Maybe aht you got there is a fossilized piss puddle from a dinosaur long ago... Minerals in the earth formed the shape?

Hey its a wild ass guess...

 

[dixiedigger57]

could have been one layer, and another formed over it at different time, little different mix, and formed other side, then layer broken up to make the rocks. just guessing. make neat deco piece.

 

[1859large]

It is natural. Just the way that rock cleaves. Some rocks cleave perfectly flat others not so much so. Others don't cleave at all. Cleave, cleavage, are geological terms. Good slate cleaves perfectly flat, a function of mineralogy and metamorphic history, think slate roof or billiard table. Your rock is likely a mudstone or muddy siltystone which has a poor cleavage. No magic, nothing special, just a neat rock.

HH 1859

 

[GoGoGopher]

Looks like a petrified Human lung or liver...???

HH,

 

[Larry (IL)]

It looks like one of those fake rocks to hide a house key in, but I agree with Dave that it is a natural sedimentary rock, likely a mud stone. The cavity is a air/gas pocket in the mud when the pressure turned the mud into a rock. A nice collector rock.

 

[flash5153]

It is cool,,,,maybe,,grease it up,,pour some plaster of paris in it,,,,put together and make some molds. When you get two,,it looks like you could make some butterfly lawn decorations out of them. Paint em up and all that.

 

[Ant]

I think it is natural too, I say slate or shale.

http://www.newenglandnativestone.com/prodpageimages/sl5.jpg

http://traversebayshores.blogspot.com/2010/07/shale-versus-slate.html

 

[goldnugget]

I live in Charlotte,N.Carolina U S A and this ? ? ? Rock was found by my Daughter where they were building a New Elementary School.. Any Help. I was looking for bottles at the time..Thanks for any info